A deeply nested sign of the times
This gets complicated because a campaign had been orchestrated among some online Palin dissidents to flag the post as violating Facebook's terms of service, claiming that it counted as racism or hate speech. When the Palin post disappeared, it was unclear whether it had been removed by one of Palin's representatives or whether the grassroots effort had proven successful. Then the note was reposted on Thursday morning, explaining that it had been "unintentionally deleted by mistake or technical glitch."
Facebook, which just announced this week that it has 500 million active users around the world, says that a large number of reports from users that the note may have been in violation of its terms of service could have led to the note's automated removal.